A taphonomic approach to the pollen assemblage from layer M of the Abric Romaní archaeological site (NE Iberian Peninsula)

Autor: Isabel Expósito, Francesc Burjachs, Cristina Val-Peón, María Soto
Rok vydání: 2019
Předmět:
Zdroj: Review of Palaeobotany and Palynology. 270:19-39
ISSN: 0034-6667
Popis: Palynological record is affected by several factors, such as taphonomic processes, which could cause a bias of the pollen spectra. The study of these processes occurring on archaeological deposits could provide insight into formation and sedimentation conditions, but also into anthropogenic activities. Based on these hypotheses, we have analyzed the taphonomic features of the pollen record on sediments collected from the layer M of the Abric Romani archaeological site (40–110 ka BP), which is characterized by a high temporal resolution. Four kinds of taphonomic alterations were identified in pollen and spores: thermal alteration, fracturing, compaction, and corrosion. Palynological concentrations and the presence of microcharcoal particles have been also registered. Regarding the different origins and spatial location of the samples, we intend to establish a connection between the pollen preservation degree and the diversity of processes occurring at the site. In light of the sedimentological history of the archaeological site and the fact that layer M has been considered a palimpsest of great complexity, palynological results seem to show the existence of different depositional events. Considering the relationship between the identified alterations, it seems that thermal alteration would be linked to biostratinomic processes, while fracturing, corrosion, and compaction damages could derive from the fossil-diagenetic phase.
Databáze: OpenAIRE